Question: Which was the political party of the chairperson of Josip Broz Tito?
Paraphrase: What political part does Josip Broz Tito belong to?
SPARQL (Wikidata):  select distinct ?sbj where { ?sbj wdt:P488 wd:Q9161 . ?sbj wdt:P31 wd:Q7278 } 
Answer: League of Communists of Yugoslavia